Westinghouse CONTRACTOR SERIES 10KPRO FULLY FEATURED Owner's Manual

 

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6.  Place a clean rag over the opening created by the 

removal of the spark plug to make sure no dirt can 
get into the combustion chamber.

7.  Inspect the spark plug for:

x Cracked or chipped insulator
x Excessive wear
x Spark plug gap (the acceptable limit of 0.024 – 

0.032 in. [0.60 – 0.80 mm]) (see Figure 56).

If the spark plug fails any one of the conditions 
listed above, replace the plug with a Champion 
RN9YC plug or equivalent.

Only use the recommended spark plug (Champion 
RN9YC or equivalent). Using a non-recommended 
spark plug could result in damage to the engine.

8.  Install the spark plug by carefully following the steps 

outlined below:

a -  

Carefully insert the spark plug back into the 
cylinder head. Hand-thread the spark plug until 
it bottoms out.

b -  

Using the 13/16" spark plug socket wrench 
provided, turn the spark plug to ensure it is fully 
seated.

c -  

Replace the spark plug boot, making sure the 
boot fully engages the spark plug’s tip.

Recommended Spark Plug Replacement:

To ensure the battery remains charged, the generator 
should be started every 2 to 3 months and run for 
a minimum of 15 minutes or the charger should be 
plugged into the generator and the generator should be 
charged overnight. Plug the cord from the charger into 
the charging port on the generator. Plug the charger into 
a 110/120-volt AC outlet 

.